Affiliation:
1. Department of Mechanical and Aerospace Engineering, University of Missouri—Rolla, 1870 Miner Circle, Rolla, MO 65409-0050
Abstract
This paper presents an approach for modeling powder delivery system dynamics in low flow rate applications. Discrete particle modeling (DPM) is utilized to analyze the motion of individual powder particles. In DPM, an irregular bouncing model is employed to represent the powder dispersion in the powder delivery system induced by non-spherical particle-wall collisions. A three-dimensional friction collision model is utilized to simulate the interactions between particles and the powder delivery system walls. The modeling approach is experimentally verified and simulation studies are conducted to explore the effect of powder delivery system mechanical design parameters (i.e., tube length, diameter, and angle, number of tubes and meshes, and mesh orientation and size) on the powder flow dynamics. The simulation studies demonstrate that the powder delivery system dynamics can be modeled by a pure transport delay coupled with a first order system.
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering
Reference10 articles.
1. Gravity Flow of Granular Materials in Conical Hoppers;Nguyen;J. Appl. Mech.
2. Activities in Discrete Particle Simulation in Japan;Tsuji;Powder Technol.
3. A Discrete Numerical Model for Granular Assemblies;Cundall;Geotechnique
4. Tsuji, Y., Shen, N. Y., and Morikawa, Y., 1989, “Numerical Simulation of Gas-Solid Flows. 1: Particle-to-Wall Collision,” Technology Reports of the Osaka University, 39, pp. 233–241.
5. Lagrangian Simulation of Dilute Gas-Solid Flows in a Horizontal Pipe;Tsuji;Adv. Powder Technol.
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